I am well aware of
https://iancoleman.io/bip39/ but is there a similar tool that generates ready to print paper wallets with some fancy designs, qr codes, etc)?
Don't try something fancy.
You can use wallet like Bitcoin Core, Electrum wallet and generate your wallet offline, then print the mnemonic seed, private key and public address information, includes QR codes, by yourself.
It will not give you something fancy but it is safer than using any third party fancy tool to generate your wallet and print it.
DO NOT USE PAPER WALLETS! bitaddress.org phishing scam- Do not use wallets that don't give you recovery data; these wallets are likely controlling your keys.
- Do not use paper wallets unless you're an advanced user who understands all the risks.
- Do not store large amounts of value in single signature wallets.
- Make sure your heirs know how to recover your wallets without you!